http://underworld.ultimacodex.com/abysmal/

This is pretty cool, its a long way to go before its actually playable. But you can load up system shock 1 into it, and check out the first level in higher resolution, with hardware accelerated texture smoothing.

Wishes there was a mod for this already!

http://revert3d.blogspot.com

wonder which one will make it first.

Neither site appears to have been updated lately. Be surprised to see one of them completed. Nice to dream though.

http://tsshp.sourceforge.net/

THat's another group, trying to 'remake' it.

Shame.